The critic found the new play utterly _____, describing it as devoid of emotional depth or intellectual stimulation; indeed, she labeled it as entirely _____, lacking any discernible merit.

✓ Correct Answer: Option B

The description 'devoid of emotional depth or intellectual stimulation' indicates a lack of interest or substance. Both 'insipid' and 'vapid' mean dull, uninteresting, or lacking flavor/spirit, fitting the context of the play being labeled as without merit. The other options are either antonyms or unrelated.